Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Ferroelectric Films: Cheaper, Smaller and Less Energy Requiring Components for Laptops and Mobile Phones

19.12.2005


Chalmers University of Technology in Gothenburg, Sweden, has together with five European partners started a three year project, Nanostar, for mastering of nanostructured multifunctional ferroelectric films for low cost mass production of microwave devices.



The project costs are 4.1 million Euros of which 2.8 million is supported by the European Commision in the 6th framework programme while the rest is paid for by the partners. Coordinator of the project is Professor Spartak Gevorgian at Chalmers Department of Microtechnology and Nanoscience, MC2.

The main focus will be on the development of theory, fabrication processes and device demonstrators for functional validation of nanostructured multifunctional ferroelectric films and components applicable in microwave communication.


Ferroelectrics considered in the project are complex metal oxide dielectrics and barium and strontium titanat, characterized by high dielectric permittivity.

The dielectric permittivity of these materials is electric field dependent, allowing development of voltage controlled capacitors (varactors) and a large number of tuneable microwave components for microwave applications.

Professor Spartak Gevorgian: "The devices based on these films offer a substantial reduction of cost, sizes and power consumption, i.e. features useful for power hungry microwave systems, especially in portable/handheld devices such as mobile phones, laptops etc. They can also be applied in adaptable/reconfigurable microwave systems consisting of a large number of tuneable components, such as large phased array antennas and tuneable metamaterials.

The innovations also include nanostructured ferroelectric films with engineered, radically new dielectric properties, and exploitation of new physical effects in nanostructured ferroelectrics for applications in devices with new functions. Further improvement of properties of ferroelectric films and devices in terms of reduction of the temperature dependence, dielectric hysteresis, losses, noise and parameter drift along with increased long term stability and tuneability are included in the project.

"Demonstrators will be developed for microwave communications applications, but they will also be potentially useful for optoelectronics and sensor applications. Tuneable TFBARs, which have no analogues in the electronics industry, are one of the typical new devices with new functions to be considered", says Spartak Gevorgian.

The partners in the project are: Chalmers University of Technology, Gothenburg, Sweden; Philips Electronics Nederland B.V, Eindhoven, The Netherlands; Ericsson AB, Mölndal, Sweden; Temex Filters (SAW) Business Unit of Temex; Sophia Antipolis, France; Swiss Federal Institute of Technology, Lausanne, Switzerland; and Electrotechnical University, St. Petersburg, Russia.

Jorun Fahle | alfa
Further information:
http://www.nanostar-eu.com

More articles from Information Technology:

nachricht Snake-inspired robot uses kirigami to move
22.02.2018 | Harvard John A. Paulson School of Engineering and Applied Sciences

nachricht Camera technology in vehicles: Low-latency image data compression
22.02.2018 | Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Stiffness matters

22.02.2018 | Life Sciences

Magnetic field traces gas and dust swirling around supermassive black hole

22.02.2018 | Physics and Astronomy

First evidence of surprising ocean warming around Galápagos corals

22.02.2018 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>